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3Com CS/3000-48 Installation Manual

Cs/3000 series communications server
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Part No. 09-0389-001
Published March 1996
CS/3000 S
C
OMMUNICATIONS
I
NSTALLATION
ERIES
S
G
UIDE
ERVER

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Summary of Contents for 3Com CS/3000-48

  • Page 1 CS/3000 S ® Part No. 09-0389-001 Published March 1996 ERIES OMMUNICATIONS NSTALLATION ERVER UIDE...
  • Page 2 95052-8145 © 3Com Corporation, 1996. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Corporation.
  • Page 3 Shielded Cables Connections between 3Com equipment and other equipment and peripherals must be made using shielded cables in order to maintain compliance with FCC, and other agency, electromagnetic frequency emissions limits. Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 4 Introduction This guide provides information on installing, configuring, troubleshooting, maintaining, and servicing the 3Com servers. The CS/3000 series consists of Models CS/3000 and CS/3100. These models are identical except that Model CS/3100 includes a diskette drive. All references in this guide to “CS/3000 series,” “communications server,” or “server,”...
  • Page 5 BOUT UIDE Table 2 Text Conventions Convention Description “Enter” vs. “Type” “Enter” means to type something, then press the Return or Enter key. Do not press the Return or Enter key when an instruction says only “type.” “Syntax” vs. “Command” The term “syntax”...
  • Page 6 (LAN). These products support most asynchronous terminals, hosts, printers, personal computers, modems, word processors, and other devices. All CS/3000 series models can be used as terminal servers or as combination host and terminal servers. The CS/3000 series consists of Model CS/3000 and Model CS/3100. These models are identical except that Model CS/3100 includes a diskette drive.
  • Page 7 VERVIEW Although some multiprotocol communications software packages include Network Control Server (NCS) software for backward compatibility, 3Com no longer provides technical support for NCS software or servers. The user can replace or add a 16-port asynchronous module, and replace the diskette drive (Model CS/3100 only), power supply, private memory chips, and EPROM.
  • Page 8 CS/3000 series servers can also include the following optional components: Ethernet interface modules Single-port AUI module (10BASE5) Single-port RJ-45 module (10BASE-T) Rack mount kit Figure 1-1 shows front and rear views of Model CS/3100. (Model CS/3000 is similar, but does not have a diskette drive in the front panel.) The rear view shows three 16-port asynchronous modules and a single-port AUI module installed, but not cabled.
  • Page 9 1: O HAPTER VERVIEW Chassis The chassis houses the following components: Figure 1-2 shows the location of these components in a Model CS/3100 with its cover removed. (Model CS/3000 is identical except that it does not have a diskette drive.) Figure 1-2 Model CS/3100 with Cover Removed Motherboard Auxiliary processor board...
  • Page 10 Provides the connection between the server and a parallel printer. Provides the connection between the server and a console. Reserved for internal 3Com use and not currently operational. Provides the connection between the server and an Ethernet interface module. Contains configurable firmware parameters and commands to reboot or reset the server, make copies of the software distribution diskette, perform diagnostic tasks, and so on.
  • Page 11 1: O HAPTER VERVIEW Hardware The hardware interrupt switch is located on the server’s left side (viewed Interrupt Switch from the front of the server) near the front, as shown in Figure 1-1 on page 1-3. The switch is recessed behind a small round hole . Pressing this switch generates a nonmaskable interrupt (NMI), aborting application software, disabling all ports except the console port, and passing control to the monitor utility.
  • Page 12 Reset switch Figure 1-3 Front Panel of Model CS/3100 LEDs The six front-panel LED indicators display diagnostic and operational activity at power-on and while communications server software is running. Table 1-3 lists these front-panel LED indicators and their functions. Table 1-3 Front-Panel LED Indicators LED Name Normal State Function Power...

  • Page 13: Back Panel

    Figure 1-4 Back Panel of CS/3000 Series The following sections describe these components. Slots CS/3000 series servers have four slots in the back panel, three for 16-port asynchronous modules and one for an Ethernet interface module. CS/3100 includes a 3.5-inch, 135-tpi diskette drive located on the...

  • Page 14: Auxiliary Ports

    For information on attaching a console, refer to “Attaching a Console”. The auxiliary port is reserved for internal 3Com use and is not operational. The console and auxiliary ports are horizontally mounted male DB-9 RS-232 connectors. The RS-232 connector associated with these ports is based on the 9-pin IBM PC AT standard, and is configured as data terminal...
  • Page 15 1-10 1: O HAPTER VERVIEW Parallel Printer Port The printer interface port connects the server to parallel printers with Centronics printer interfaces. For information on cabling the server to the printer, refer to Chapter 2, “Installation.” The cable between the server and the printer should not be more than 12 feet long, so you must locate your printer physically close to the server.
  • Page 16 The following optional Ethernet interface modules are available for the Interface Modules CS/3000 series server: Single-port AUI module (10BASE5), 3Com part number 3C5622 Single-port RJ-45 (10BASE-T), 3Com part number 3C5623 You must install one of these optional Ethernet interface modules in the back panel of the CS/3000 series server in order to operate on a network.
  • Page 17 1-12 1: O HAPTER VERVIEW Single-Port AUI Module The single-port AUI module connects to a thick or thin coaxial, twisted-pair, or fiber-optic network through an external transceiver. It consists of a board and a connector panel containing one AUI port. The AUI port is a horizontally mounted female DB-15 connector.
  • Page 18 RJ45 port Figure 1-8 Single-Port RJ-45 Module Table 1-4 Single-Port RJ-45 Module LEDs and Their Functions LED Name Normal State Activity On continuously or flashing Link Polarity Figure 1-8 also shows a connector mounted directly on the board. This connector mates with a connector on the motherboard. For information on how to install the single-port RJ-45 module in the server and cable it to a twisted-pair network, refer to Chapter 2, “Installation.”...
  • Page 19 Optional Rack An optional rack mount kit is available for CS/3000 series servers (3Com part Mount Kit number 3C759). This kit allows you to mount the server in a two- or four-pole 19-inch rack.
  • Page 20 Table 1-5 Physical Dimensions Width Depth 16.25 in. (41.67 cm) 12.75 in. (32.70 cm) * Including three 16-port asynchronous modules. Table 1-6 and Table 1-7 list electrical requirements and environmental conditions recommended for safe, reliable operation. Table 1-6 Electrical Requirements Parameter Requirement Input voltage...
  • Page 21 This chapter describes how to install your CS/3000 series server. Table 2-1 summarizes the steps in the order in which they should be performed and indicates whether each step is mandatory or optional. Table 2-1 Installation Steps Step Preparation Installing 16-port asynchronous modules Installing an Ethernet interface module Mounting the server Cabling 16-port asynchronous modules...
  • Page 22 3 Inspect the server and modules for shipping damage. If you find any damage, contact the shipping company to file a report. If you must return the server or modules to your network supplier or 3Com, ship them in their original shipping cartons and antistatic shielded bags. If the original carton was damaged in shipment, repack the hardware in a carton that provides equivalent protection.
  • Page 23 CAUTION: Procedures that involve removing the server cover must be performed by service personnel only. “Service personnel” means people who have appropriate technical training and experience. Service personnel are aware of possible hazards and of ways to minimize the danger to themselves and others. You need a #1 and a #2 Phillips screwdriver.
  • Page 24 2: I HAPTER NSTALLATION 3 Remove one blanking plate for each 16-port asynchronous module you plan to install. If you are installing fewer than three modules, remove the blanking plate closest to the power supply first and the center blanking plate next.
  • Page 25 6 Fasten the panel with the two screws. 7 Replace the cover. WARNING: To avoid a fire hazard, always replace the cover. Operating the server without a cover can cause it to overheat and will void the warranty. a Place the cover on the chassis. b Using the #1 Phillips screwdriver, replace and tighten the black screws on To cable the 16-port asynchronous modules to a host, terminal, modem, or other serial equipment, refer to “Cabling 16-Port Asynchronous Modules”.
  • Page 26 2: I HAPTER NSTALLATION Figure 2-3 Installing the Ethernet Interface Module c Continue to slide the module into the slot until you feel a slight 2 Fasten the module into the chassis with the two screws. Mounting the You can mount a CS/3000 series server on a tabletop, in a two- or four-pole Server 19-inch rack, or vertically in a wall mount.
  • Page 27 4 Do not stack objects on top of the server. Mounting in a Rack You can order an optional rack mounting kit with your server (3Com part number 3C759). This kit consists of two brackets, nuts, and screws that allow you to mount the server in a two- or four-pole 19-inch rack.
  • Page 28 Install server in rack Figure 2-4 Mounting in a Rack Mounting on the You can mount the server vertically on a wall using a wall mount kit (3Com Wall part number 3C760). When mounting the server vertically, place the server in the vertical stand with the rear panel pointing to one side.
  • Page 29 Figure 2-6 shows typical cabling applications. 3Com supplies Figure 2-5 Cabling Overview 6-wire or 8-wire modular cable D-type adapter Figure 2-6 Typical Cabling Applications Cabling 16-Port Asynchronous Modules 3Com or customer supplies CS/3000 Distribution Series method servers • Extension cables • Octopus (hydra) •...
  • Page 30 Figure 2-5 and Figure 2-6. These sections also tell you whether you can buy the option directly from 3Com or your network supplier, and they give recommended vendors and part numbers. Serial Connectors A 16-port asynchronous module has two horizontally mounted 50-pin female RJ-21 (Telco) connectors that support RS-232/RS-423 signals.
  • Page 31 Cable shields should be connected to backshells. You can buy these cables directly from 3Com or your network supplier: 10-ft (3-m) extension cable (male-male), 3Com part number 3C6270 25-ft (8-m) extension cable (male-male), 3Com part number 3C6271 50-ft (15-m) extension cable (male-male), 3Com part number 3C6272 Table 2-2 shows other recommended vendors and part numbers.
  • Page 32 RJ-12 connectors to DB-25, . Patch Panel If you want to connect to devices through a patch panel, 3Com recommends a rack-mounted patch panel that fans out eight 6-pin ports through RJ-12 jacks. The panel has three groups of eight ports, as shown in Figure 2-9 and Figure 2-10.
  • Page 33 50-pin female connector that can mate with a 50-pin bottom-entry male connector terminating an extension cable. You can buy these patch panels directly from 3Com or your network supplier: 24-channel RJ-12 patch panel, 3Com part number 3C6101 24-channel RJ-45 patch panel, 3Com part number 3C6107...
  • Page 34 2-14 2: I HAPTER NSTALLATION Wiring You must consider the wiring scheme of your cabling when you connect a Considerations device such as a host, terminal, modem, or other serial equipment to a serial connector on a 16-port asynchronous module. The asynchronous module’s serial ports are configured as DCE for attachment to DTE devices, such as terminals.
  • Page 35 (repeater), or a hub, and an AUI cable no longer than 150 ft (46 m). Module You must provide your own transceiver, fanout box, or hub. You can buy the cables shown in Table 2-3 from 3Com or your network supplier. For AUI pin assignments, refer to “AUI Port”. Table 2-3 3Com AUI Cables Length 15 ft (4.6 m)
  • Page 36 2-16 2: I HAPTER NSTALLATION Table 2-3 3Com AUI Cables (continued) Length 30 ft (9 m) 50 ft (15 m) 75 ft (23 m) 100 ft (30 m) 150 ft (46 m) 6 ft (2 m) 16 ft (5 m)
  • Page 37 Single-Port RJ-45 a maximum of 330 ft (100 m) long. Module You must provide the twisted-pair cable. 3Com recommends the following cables for European customers only: Shielded twisted-pair cable (100 ohms), Level 5 data grade media cable, for example, AT&T™ type 2061, 1061, 1261 or equivalent.
  • Page 38 2-18 2: I HAPTER NSTALLATION Attaching a To attach a printer to a CS/3000 series server, you need a standard PC printer Printer cable with a Centronics-type connector. The cable between the server and the printer should not be more than 12 feet long, so you must locate your printer close to the server.
  • Page 39 CAUTION: To eliminate cable noise emission in excess of FCC Part 15 Subpart J, or CISPR22 (EN55022) for Class A devices, the console cable should be triple-shielded (Inmac 536888 or equivalent) and have connectors with metallic backshells. Cable shields should be connected to backshells. For wiring information for the console port connector, refer to Appendix A, “Pin Assignments.”...
  • Page 40 2-20 2: I HAPTER NSTALLATION Table 2-4 Console Port Configuration Settings Parameter Baud rate Number of data bits Duplex Echo Flow control Parity Stop bits If your terminal’s parameter settings differ from those in Table 2-4, reconfigure the terminal. 3 Turn the terminal on. Attaching the A power cable is supplied with your CS/3000 series server.
  • Page 41 Once you have installed the server hardware as described in Chapter 2, “Installation,” you are ready to start your server. You can start from software stored on a 3Com Remote Boot and Configuration Services (RBCS) server, from a generic TFTP/FTP server, or from a diskette inserted in the local drive (CS/3100 only).
  • Page 42 TFTP server (for the system image) and an FTP server (for the configuration TFTP/FTP Host images). The TFTP and FTP servers will most likely be on the same host, but this is not a requirement for operation. CS/3000 series software for TFTP/FTP servers is supplied on a distribution diskette in 3.5-inch DOS or UNIX tar format.
  • Page 43 Booting from a To boot your communications server from a generic TFTP/FTP host, you Generic TFTP/FTP must configure the communications server firmware and software. For Host firmware configuration, refer to Chapter 4, “Configuration.” For software configuration, refer to the Multiprotocol Communications Server Operation Guide or software release notes.
  • Page 44 Do you want to enter monitor (Y/N)? 5 Type The following message appears: 3Com Corporation CS/3000 Series Monitor > You are now in monitor mode. 6 To copy a diskette, enter the copy command:...
  • Page 45 8 Insert a blank 2 MB (high-density) diskette (1.44 MB formatted). (Make sure that the diskette is not write-protected.) 9 Type or press the Return key to begin the format. The server formats your diskette. When it finishes, this prompt appears: Format another diskette (y/n): To format another diskette, type type...

  • Page 46: Formatting Diskettes Without The Copy Command

    3: S HAPTER TARTUP Formatting Diskettes without the Copy Command You can also format diskettes without the copy command, using the following procedure: 1 Enter monitor mode using steps 1 through 5 in the previous procedure. 2 To format a diskette, enter the format command: The following message appears: Insert diskette to be formatted Enter the density to begin formatting operation...
  • Page 47 This process takes about a minute and a half. CAUTION: 3Com suggests that you leave a working copy of the diskette in the drive. If the power fails, the communications server must have a diskette in the drive to restart automatically and to record any parameter changes.
  • Page 48 If the disk drive LED remains on after you enter the soft reset command, do the following: a Eject the diskette. b Power off the server. c Contact 3Com or your network supplier. at the monitor prompt (>).
  • Page 49 Communications Server Reference Guide, and software release notes. If you are booting your server from a diskette, software parameter values are stored on the diskette. 3Com recommends that you make a backup copy of your working diskette each time you modify software parameters. If for any reason the data in your current working diskette becomes corrupted, you can use the backup copy to restore the desired settings.
  • Page 50 Do you want to enter monitor (Y/N)? 5 Type The following message appears: 3Com Corporation CS/3000 Series Monitor > You are now in monitor mode. For other methods of entering monitor mode, refer to “Entering the Monitor”.
  • Page 51 2 Type to display current parameter settings. The following display shows factory default settings for the CS/3100 (except for the interface address, which is only an example): Current Parameters: Interface address: J1 baud rate: J2 baud rate: Continuous self-test: Auto-reboot: Initial boot source: Number of reboots: Network boot string:...
  • Page 52 4: C HAPTER ONFIGURATION 6 When you are finished changing firmware configuration parameters, press the Escape key to return to the Firmware Configuration Utility menu. 7 Press the Escape key again to exit to the monitor prompt. 8 Press the reset switch or power off the server to exit monitor mode. Table 4-1 Firmware Configuration Parameters Parameter 1.
  • Page 53 Interface Address Displays the Ethernet address of the Ethernet interface port. You cannot configure this parameter. J1 Baud Rate Sets the baud rate for the console port. The default value is 9600. You can set the rate to 110, 300, 1200, 2400, 9600, 19200, or 38400 bps. Console port parity is set to none, and the number of data bits is set to 8.
  • Page 54 4: C HAPTER ONFIGURATION diskette is present, it tries to boot from the network. If it cannot, it asks whether you want to enter the monitor. Type assumed. If you select “Floppy,” the server tries to boot from diskette. If it cannot, it displays a diagnostic message such as “Diskette not present.”...
  • Page 55 Bridge Transport Protocol (BTP), System Load Protocol (SLP), and Trivial File Transfer Protocol (TFTP). BTP is a 3Com proprietary load protocol. This protocol was formerly used with 3Com Network Control Servers (NCSs). 3Com no longer supports NCS software, and you should not select this protocol. SLP is 3Com’s implementation of the 802.1 standard System Load Protocol.
  • Page 56 4: C HAPTER ONFIGURATION Address discovery obtains the information listed in this menu either through static entries configured in firmware by the user, or by BOOTstrap Protocol (BOOTP) or Reverse Address Resolution Protocol (RARP) from another source during system boot. The discovery protocol you choose defines how much additional information you must provide.
  • Page 57 4 minutes if the boot source is a diskette. Although setting the Memory Test Bypass parameter to “Enable” reduces the server’s startup time, 3Com recommends maintaining the default setting of “Disable” to detect memory failures.
  • Page 58 Replacing the diskette drive (Model CS/3100 only), power supply, memory chips, or EPROM Maintenance 3Com recommends the following procedures for preventive maintenance: Observe the environmental requirements listed in Table 1-7 on page 1-15. Temperatures outside the recommended range can impair reliability and cause diskette access errors.
  • Page 59 It is mounted in a single, removable cartridge. If your unit persistently blows fuses, there may be a problem with either your system’s power supply or your facility’s supply voltage. Contact 3Com or your network supplier for assistance. To change a fuse, follow this procedure: WARNING: Be sure the unit is turned off and the power cord is either disengaged from the unit’s receptacle or unplugged from the wall socket.
  • Page 60 2 Pry the cartridge loose. It should pop out easily. 3 Slide the fuseholder cartridge completely out of the enclosure. Prying cartridge Figure 5-1 Removing the Fuseholder Cartridge 4 Remove the fuse clip insert from the fuseholder cartridge. The fuse clips, conductors, and fuses are mounted on this cartridge. Pull up the plastic retainer on the fuseholder cartridge and slide the insert away from the cartridge, as shown in Figure 5-2.
  • Page 61 5: M HAPTER AINTENANCE AND Figure 5-2 Opening the Fuseholder Cartridge Replacing an The procedure for installing an Ethernet interface module is similar for all Ethernet Interface types of modules. Whenever you handle an Ethernet interface module, Module adhere to these electrostatic discharge (ESD) guidelines to avoid damage: Keep the new module in its antistatic bag until you are ready to install it.
  • Page 62 1 Shut down the server, as described in “Shutting Down”. 2 Turn off the server and unplug the power cord from the outlet and the server’s power supply receptacle. 3 Uncable the Ethernet interface module. 4 Remove the module from the slot. a Remove the two screws.
  • Page 63 Follow the instructions in this section carefully. If any problems occur, contact 3Com or your authorized service representative immediately. If the information in release notes shipped with an upgrade kit differs from the information in this guide, follow the release notes.
  • Page 64 Removing the Cover Follow these steps to remove the server cover: 1 Shut down the server, as described in “Shutting Down”. WARNING: Before removing the cover, be sure the unit is turned off and the power cord is either disengaged from the unit’s receptacle or unplugged from the wall socket.
  • Page 65 5: M HAPTER AINTENANCE AND 3 If you are adding a 16-port asynchronous module, continue with step 4. If you are replacing one or more modules, you need to remove all of them. a Mark all cables to indicate where they connect. b Remove all cable strain relief mechanisms.
  • Page 66 g Remove the two screws that fasten the module you want to replace. Refer to Figure 2-2 on page 2-4 for the location of these screws. h Remove the module. 4 Install the replacement or new 16-port asynchronous module. If you are planning to install fewer than three 16-port asynchronous modules, you must install the first module in the slot closest to the power supply and the second module in the center slot.

  • Page 67: Diskette Drive

    5-10 5: M HAPTER AINTENANCE AND Replacing the This section explains how to replace the diskette drive (Model CS/3100 only). Diskette Drive You need a #1 and a #2 Phillips screwdriver. Follow this procedure: 1 Make sure server power is off and the power cord is unplugged. 2 Remove the cover, as described in “Removing the Cover”.
  • Page 68 4 Slip the ribbon cable out of the cable clamp. Figure 5-6 shows the location of the cable clamp. 5 Remove the diskette drive from the chassis. Remove the screw that fastens the diskette drive bracket to the bottom of the chassis.
  • Page 69 5-12 5: M HAPTER AINTENANCE AND WARNING: Do not open the power supply. It contains hazardous voltages. There are no user-serviceable parts inside. VORSICHT: Öffnen Sie niemals das Netzteil. Hochspannung! Es sind keine zu wartenden Teile enthalten. AVERTISSEMENT: Ne pas ouvrir ce bloc d’alimentation. Tensions dangereuses à...
  • Page 70 16-port asynchronous modules Front panel Figure 5-7 Disconnecting Power Supply Cables 4 Remove the power supply. a Remove the screw that fastens the power supply module to the bottom of the chassis. Figure 5-7 shows the location of the screw. b Slide the power supply module toward the front of the server and lift it partially out.
  • Page 71 5-14 5: M HAPTER AINTENANCE AND d For Model CS/3100, disconnect the power wiring harness from the 5 Install the new power supply module. a Reconnect the power supply cable to the connector on the b For Model CS/3100 only, reconnect the power wiring harness to the c Slip the keyhole slots on the bottom of the power supply module over d Fasten the module in place with the screw.
  • Page 72 Auxiliary processor board Private memory chips Motherboard Pin 1 Figure 5-8 Location of Memory Chips on Motherboard 3 Remove the old memory chips that you want to replace. Using the thumb and forefinger of one or both hands, grasp the front and back of the chip and gently rock it back and forth until it becomes loose.
  • Page 73 5-16 5: M HAPTER AINTENANCE AND 5 Being careful to line up the pins with the socket, firmly push each memory chip into its socket until it snaps into place. CAUTION: Be sure that no pins are bent under the body of the chip. Each pin must be inserted properly into its socket.
  • Page 74 3 Remove the EPROM from the motherboard. Using a small slotted screwdriver or an EPROM-pulling tool, carefully pry the old EPROM out of its socket, making sure not to bend the pins. As you are removing the EPROM, note its orientation. The notched edge is toward the right (when viewed from the front of the server).
  • Page 75 5-18 5: M HAPTER AINTENANCE AND 2 Place the cover on the chassis. To ensure correct placement, be sure that the panel with the greater number of ventilation holes is positioned on the left side (viewed from the front of the server). 3 Using the #1 Phillips screwdriver, tighten the screws on each side of the cover until snug.
  • Page 76 4 Inspect the server’s fuse and replace it, if necessary. For instructions, refer to “Replacing the Fuse”. 5 Try replacing the power cord. If the Power and Self Test LEDs still fail to light, contact 3Com or your network supplier. ROUBLESHOOTING...
  • Page 77 CPU failure). If a lighted Self Test LED is the only symptom, contact 3Com or your networoced with the motherboard or auxiliary processor board, contact 3Com or your network supplier. If the error is associated with a 16-port asynchronous module, replace the module. For information on replacing the module, refer to Chapter 5, “Maintenance and Upgrades.”...
  • Page 78 Operating This section lists problems the CS/3000 series server can experience while it Problems is running multiprotocol communications server software. These problems are indicated by abnormal behavior of front-panel LEDs or by error messages on the console. The Self Test LED flashes continually or the Boot State LED remains on Symptom during software operation.
  • Page 79 6: T HAPTER ROUBLESHOOTING 3 If the problems persists, contact 3Com or your network supplier. The communications server experiences one or more of these symptoms: Symptom Data Received, Packet Received, and Network Activity LEDs do not indicate any activity, despite being connected to an operational network.
  • Page 80 3 If these steps do not solve your problem, replace your Ethernet interface module, as described in “Replacing an Ethernet Interface Module”. 4 If the symptom persists, contact 3Com or your network supplier. The Polarity LED on the single-port RJ-45 module remains on.
  • Page 81 6: T HAPTER ROUBLESHOOTING Memory Dump If the communications server fails during operation, you can write the Procedures contents of the server’s CPU registers and RAM to an RBCS or TFTP/FTP server, or to diskettes. This procedure is called a memory dump. The memory dump procedure depends on the communications server’s configuration.
  • Page 82 monitor,” as described in Chapter 4, “Configuration.” If this parameter is set to “Reboot only,” the communications server reboots automatically after a failure, overwriting RAM. If it is set to “Upload then reboot” the commu- nications server does not allow a memory dump to be written to a diskette. To write a memory dump to the CS/3100 diskette, you need six or more high-density (2 MB) 3.5-inch diskettes (1.44 MB formatted).
  • Page 83 The server then displays the following prompt: Dump completed Sending in the Contact your network supplier or 3Com Customer Support before sending a Memory Dump memory dump from your communications server. Send the following information along with the diskettes: The date and time at which the crash occurred and any information available about the network traffic load at that time...
  • Page 84 Memory Dump Procedures The text of any error messages that appeared on the console at the time of the crash (if a console was attached) The text of any error messages that appeared on the console during any step of the dump procedure, and a description of any action taken to recover from the error (for example, skipped the step, repeated the step successfully) The frequency of the problem...
  • Page 85 Parallel printer port D-type adapters Serial Connectors CS/3000 series servers provide up to 48 serial ports, depending on the number of 16-port asynchronous modules installed. Each module provides two 50-pin serial connectors; each connector provides eight ports. You can install up to three modules.
  • Page 86 A: P PPENDIX SSIGNMENTS Figure A-1 shows pin numbers for serial connectors on the 16-port asynchronous module. Figure A-1 Serial Connector Pin Numbering The communications server acts as a DCE device. The 50 pins in each serial connector correspond to eight DCE ports. Port 0, for instance, consists of pins 1, 2, 3, 26, 27, and 28;...
  • Page 87 Table A-2 Serial Connector Pin Assignments, Software Version 6.0 Port None Software Version 6.1 Software version 6.1 and later can assign DTR to pins 3, 6, 9, 12, 15, 18, 21, and Later and 24, which are not used by earlier software versions. RTS remains on pins 1, 4, 7, 10, 13, 16, 19, and 22.
  • Page 88 A: P PPENDIX SSIGNMENTS If UseDTRin is set to OnDTR, then pin 1 is interpreted only as RTS, and pin 3 is interpreted as DTR, as shown in Table A-3. The behavior of the single output control signal (pin 28) has not changed. If FlowCtrlFrom is set to CTS_RTS, the signal is used as CTS to flow-control the attached device.
  • Page 89 Fanning out the You can fan out the eight ports of the Telco connector to eight 8-pin RJ-45 Telco Connector jacks using a patch panel (described in “Patch Panel”) or to eight 6-pin RJ-12 jacks using an octopus (hydra) cable (described in “Octopus (Hydra) Cable”). The resulting pin numbers are shown in Table A-4.
  • Page 90 A: P PPENDIX SSIGNMENTS Figure A-2 AUI Port Pin Numbers Table A-5 AUI Port Pin Assignments Pin Number RJ-45 Port Figure A-3 shows pin numbers for the RJ-45 port on the single-port RJ-45 (10BASE-T) module. Table A-6 lists pin assignments for this port. Figure A-3 RJ-45 Port Pin Numbers •...
  • Page 91 Table A-6 RJ-45 Port Pin Assignments Pin Number 4, 5 7, 8 Console Port Figure A-4 shows pin numbers for the console port on the server’s back panel. Table A-7 lists pin assignments. This port is a DB-9 male connector based on the 9-pin IBM PC AT standard, and is configured as data terminal equipment (DTE).
  • Page 92 A: P PPENDIX SSIGNMENTS Parallel Printer CS/3000 series servers include a female printer port (labeled “Parallel Port Printer”) for connecting the server to Centronics-type parallel printers. Figure A-5 shows pin numbering for the printer port. Table A-8 lists pin assignments for this port. The table shows pin assignments for both the server interface and the printer connector interface.
  • Page 93 (hydra) cables: 2-ft (0.6-m) octopus (hydra) cable, 3Com part number 3C6102 4-ft (1.2-m) octopus (hydra) cable, MOD-TAP part number 24-466-10 6-ft (1.8-m) octopus (hydra) cable, MOD-TAP part number 24-666-10 Table A-10 and Table A-11 describe adapter connections between RJ-12 pins and DB-25 pins.
  • Page 94 TXD in RXD out Not used * CS/3000 series servers ignore this signal. † Pin numbers in parentheses indicate loopback connections that may be necessary for some devices. The prewired adapters listed in Table A-9 include all loopback connections. Table A-11 D-Type Adapter Pin Assignments for Attachment to DTE...
  • Page 95 Table A-12 MOD-TAP D-Type Adapters for Dual Input Adapter Type DCE Dial-In DTE Dial-In DCE Dial-Out DTE Dial-Out Table A-13 Dual-Input Dial-In (Bidirectional Flow Control) DCE Attachment RJ-12 Pin CS Signal RS-232 Signal RS-232 Pin CTS out RTS in RXD out TXD in RTS in CTS out...
  • Page 96 CS/3000 configuration Figure A-6 Replacing a CS/1 Server with a CS/3000 Series Server You can buy the following adapter cable directly from 3Com or your network supplier: 2-ft (0.6-m) CS/1 to CS/3x000 conversion cable, 3Com part number 3C6100 The conversion cable terminates in two 50-pin male connectors, J1 and J2.
  • Page 97 Table A-15 Conversion Cable Connector Pin Assignments J1 Pin J2 Pin J1 Signal DCD0 1, 2 — Not used DCD1 4, 5 — Not used DCD2 7, 8 — Not used DCD3 10, 11 — Not used DCD4 13, 14 —...
  • Page 98 The server may not always be able to report a failure on the console (for example, CPU failure). If you receive an error message, refer to Chapter 6, “Troubleshooting.” If you still receive an error message, contact 3Com or your network supplier. Refer to Appendix D, “Technical Support,” for technical support information. Normal Messages The following messages indicate normal startup.
  • Page 99 B: S PPENDIX TARTUP ESSAGES Auxiliary Processor Board - Installed. Meaning: Booting complete Meaning: Booting from <source> Meaning: CPU - 4 Megs Private RAM, 2 Megs Shared RAM - Passed N4 MMON rev. <xxx> Meaning: CS/3000 Series Power-up Meaning: Diagnostic Upload - Completed Meaning: Do you want to enter monitor (Y/N)? Meaning:...
  • Page 100 Network timed out Meaning: Skipping memory tests! Meaning: For example, if the firmware’s Initial Boot Source parameter is set to Network and the Memory Test Bypass parameter is set to Disable on a Model CS/3000, messages similar to the following appear on the console: CS/3000 Series Power-up CPU - 4 Megs Private RAM, 2 Megs Shared RAM, Floppy disk drive not installed! - Passed N4 MMON rev.

  • Page 101: Error Messages

    B: S PPENDIX TARTUP <Type> - Failed <test name> <test number> [<x>] [<y>] [<z>] Meaning: For example, the error message CPU - Failed PARITY TEST 06.00 means that the CPU parity test, number 06.00, failed. <Type> <test name> Failed: was <wwwwwwww>, expected <eeeeeeee>, at Address <xxxxxxxx>...
  • Page 102 Channel Attention to Aux Processor Board Inoperative Meaning: The channel attention interrupt to the auxiliary processor board is inoperative. Checksum Test - Failed Aux Processor Board Unable to Report Status Meaning: The checksum test of the auxiliary processor board’s RAM failed.
  • Page 103 B: S PPENDIX TARTUP mean that the data test for RAM failed at address 0x4000010. The data that was expected was 0x0100. The actual data was 0xFFFF. Startup Test on Auxiliary Processor Board Failed Meaning: Status Register - Failed Channel Attention Interrupt Bit Not Set Meaning: Status Register - Failed NMI Bit Not Set...
  • Page 104 This appendix describes how to access and use the monitor utility, which consists of commands and parameters that reside in the motherboard’s firmware. Monitor mode suspends normal operation and allows interaction only with the monitor command interface. Using this utility, you can perform the following tasks: Boot or reset the server Copy and format diskettes...
  • Page 105 Do you want to enter monitor (Y/N)? 3 Type The following message appears: 3Com Corporation CS/3000 Series Monitor > You are now in monitor mode. At startup If the server becomes nonfunctional at the prompt.
  • Page 106 Continuous Self-Test and Initial Boot Source parameters. If an error occurs while the server is running its software, the server automatically accesses the monitor. At this point, 3Com or your network supplier may ask you to perform a memory dump. For information on memory dumps, refer to “Memory Dump Procedures”.
  • Page 107 Entering this command performs a soft reset, which resets the monitor’s stack and internal variables and the Ethernet and serial controllers. At this point, 3Com or your network supplier may ask you to perform a memory dump. For information on memory dumps, refer to “Memory Dump Procedures”.
  • Page 108 Command Table 6-1 summarizes monitor mode commands. You can enter commands Descriptions in either upper- or lowercase at the angle bracket prompt. Detailed descriptions of the commands follow the table. Table 6-1 Firmware Commands Command Function Boots from the source specified in the Network Boot String parameter. Boots from a specified source, overriding the source specified in Initial Boot Source parameter.
  • Page 109 C: M PPENDIX ONITOR TILITY The <filenumber> parameter specifies a bootfile on the diskette (Model CS/3100 only). Valid entries are 0 through 9. For example, enter boot from file 2 on the diskette. The <filename> and <address> parameters specify the name of the bootfile and the location in memory where it should be loaded.
  • Page 110 Displays a list of commands and their syntax. Commands in the list that are Description not documented in this guide are for 3Com internal use only. Syntax Resets the monitor’s stack and internal variables (called a soft reset). It also Description resets the Ethernet and serial controllers.
  • Page 111 Entering all available commands. The undocumented commands in the diagnostic menu are for 3Com internal use only. Syntax Dumps the server’s memory to the hard disk of an RBCS or TFTP/FTP server Description on the network, as specified in the Network Boot String parameter.

  • Page 112: Online Technical Services

    3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Online Technical 3Com offers worldwide product support seven days a week, 24 hours a day, Services through the following online systems: 3Com Bulletin...
  • Page 113 ISDN users can dial-in to 3ComBBS using a digital modem for fast access up to 56 Kbps. To access 3ComBBS using ISDN, dial the following number: (408) 654 2703 World Wide Web Access the latest networking information on 3Com’s World Wide Web site by Site entering our URL into your Internet browser: http://www.3Com.com/ This service features news and information about 3Com products, customer service and support, 3Com’s latest news releases, selected articles from...
  • Page 114 3Com support contracts are available from 3Com. In the U.S. and Canada, call (800) 876-3266 for customer service. If you are outside the U.S. and Canada, contact your local 3Com sales office to find your authorized service provider: Country Australia (Sydney)
  • Page 115 Ireland Italy * These numbers are toll-free. Returning A product sent directly to 3Com for repair must first be assigned a Return Products for Materials Authorization (RMA) number. A product sent to 3Com without an Repair RMA number will be returned to the sender unopened, at the sender’s expense.
  • Page 116 2-9 to 2-15 configurations 1-2 error message B-6 installation 2-2 to 2-5 pin assignments A-2 replacing or adding 5-7 3Com Bulletin Board Service (3ComBBS) D-1 3Com sales offices D-3 3ComFacts D-2 3ComForum D-2 50-pin connector 2-10, A-2, A-5 Activity LED 1-13...
  • Page 117 NDEX console 2-18 Ethernet interface module 2-15 to 2-17 patch panel 2-13 power cable 2-20 printer 2-18 single-port AUI module 2-15 single-port RJ-45 module 2-17 chassis 1-4 circuit assignments. See pin assignments cleaning diskette drive 5-2 Client IP Address parameter 4-9 CO command C-6 commands, firmware.
  • Page 118 File Transfer Protocol server. See TFTP/FTP server firmware commands booting C-5 configuration C-7 See also Firmware Configuration Utility copying diskette C-6 deleting file C-6 dumping memory to diskettes C-6 dumping memory to network C-8 formatting diskette C-7 help menu C-7, C-8 listing files C-6 repeating C-8 reset C-7...
  • Page 119 NDEX to RBCS server 6-6 to TFTP/FTP server 6-6 Memory Test Bypass parameter 3-2, 3-6, 4-10 messages, startup 3-7, B-1 models, communications server 1-1 module asynchronous. See 16-port asynchronous module AUI. See single-port AUI module Ethernet interface. See Ethernet interface module power supply 1-13, 5-11 RJ-45.
  • Page 120 reboot Auto-Reboot parameter 4-5 number of reboots 4-7 remote 3-3 Remote Boot and Configuration Service server. See RBCS server remote reboot 3-3 removing cover 5-7 repeater 2-15 repeating firmware command C-8 replacing 16-port asynchronous module 5-7 cover 5-17 diskette drive 5-10 EPROM 5-16 Ethernet interface module 5-4 fuse 5-2...
  • Page 121 NDEX memory dump 6-6 to 6-9 operating problems 6-3 to 6-4 startup problems 6-1 to 6-2 twisted-pair cable 2-17 typographical conventions 15 UP command C-8 upgrades adding 16-port asynchronous module 5-7 removing cover 5-7 replacing 16-port asynchronous module 5-7 cover 5-17 diskette drive 5-10 EPROM 5-16 power supply module 5-11...
  • Page 122 Spare parts and spares kits If a product does not operate as warranted during the applicable warranty period, 3Com shall, at its option and expense, repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or refund to Customer the purchase price paid for the defective product.

This manual is also suitable for:

Cs/3000Cs/3100